<!DOCTYPE html>
<HTML>
<HEAD><meta name="viewport" content="width=device-width, initial-scale=1">
<Title>Line Comparison</Title>
<link type='text/css' rel='Stylesheet' href="maxchartapi.css" />
</HEAD>
<body bgcolor="#FFFFFF" text="#000000" topmargin="0" leftmargin="0" rightmargin="0" marginwidth="0" marginheight="0">

<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Line Comparison</p>
<hr class="separator">
<div class="content">
<img src="images/linecompare.png" width='600' height='300'>
<br><br>
This example demonstrates filling the area between two lines or curves, as well as a number of advanced chart formatting techniques.<br><br>
ChartDirector supports filling the area between two lines. The lines can be from a <a href="LineLayer.htm">LineLayer</a>, <a href="SplineLayer.htm">SplineLayer</a>, <a href="StepLineLayer.htm">StepLineLayer</a>, <a href="TrendLayer.htm">TrendLayer</a> or from an axis <a href="Mark.htm">Mark</a>. Two colors can be used for filling, depending on which line is on top.<br><br>
The effects in this example is achieved using the following methods:<br><br>
<ul><li> Add the purple spline curve to the chart using <a href="XYChart.addSplineLayer.htm">XYChart.addSplineLayer</a>.<br><br>
<li> Add the two green lines to the chart using <a href="XYChart.addLineLayer.htm">XYChart.addLineLayer</a> and <a href="Layer.addDataSet.htm">Layer.addDataSet</a>.<br><br>
<li> Color the region between the two green lines with semi-transparent green using <a href="XYChart.addInterLineLayer.htm">XYChart.addInterLineLayer</a>.<br><br>
<li> Color the region between the spline curve and the upper green line using <a href="XYChart.addInterLineLayer.htm">XYChart.addInterLineLayer</a>. The fill color is set to red if the spline line is above the upper green line, otherwise it is <a href="Chart.Transparent.htm">Transparent</a>.<br><br>
<li> Color the region between the spline curve and the lower green line using <a href="XYChart.addInterLineLayer.htm">XYChart.addInterLineLayer</a>. The fill color is set to blue if the spline line is below the lower green line, otherwise it is <a href="Chart.Transparent.htm">Transparent</a>.</ul>
</div>
<p class="heading1a">Source Code Listing</p>
<div class="content">
<b>[JSP Version]</b> jspdemo/linecompare.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%
// The data for the upper and lower bounding lines
double[] upperY = {60, 60, 100, 100, 60, 60};
double[] lowerY = {40, 40, 80, 80, 40, 40};
double[] zoneX = {0, 2.5, 3.5, 5.5, 6.5, 10};

// The data for the spline curve
double[] curveY = {50, 44, 54, 48, 58, 50, 90, 85, 104, 82, 96, 90, 74, 52, 35, 58, 46, 54, 48, 52,
    50};
double[] curveX = {0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5,
    10};

// Create a XYChart object of size 600 x 300 pixels, with a light grey (cccccc) background, black
// border, and 1 pixel 3D border effect.
XYChart c = new XYChart(600, 300, 0xcccccc, 0x000000, 1);

//Set search path to current JSP directory for loading icon images
c.setSearchPath(getServletConfig().getServletContext(), request);

// Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white background. Turn on both
// horizontal and vertical grid lines with light grey color (cccccc)
c.setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

// Add a legend box at (55, 32) (top of the chart) with horizontal layout. Use 9pt Arial Bold font.
// Set the background and border color to Transparent.
c.addLegend(55, 32, false, "Arial Bold", 9).setBackground(Chart.Transparent);

// Add a title box to the chart using 15pt Times Bold Italic font. The title is in CDML and includes
// embedded images for highlight. The text is white (ffffff) on a black background, with a 1 pixel
// 3D border.
c.addTitle(
    "&lt;*block,valign=absmiddle*&gt;&lt;*img=star.png*&gt;&lt;*img=star.png*&gt; Performance Enhancer " +
    "&lt;*img=star.png*&gt;&lt;*img=star.png*&gt;&lt;*/*&gt;", "Times New Roman Bold Italic", 15, 0xffffff
    ).setBackground(0x000000, -1, 1);

// Add a title to the y axis
c.yAxis().setTitle("Temperature");

// Add a title to the x axis using CMDL
c.xAxis().setTitle("&lt;*block,valign=absmiddle*&gt;&lt;*img=clock.png*&gt;  Elapsed Time (hour)&lt;*/*&gt;");

// Set the axes width to 2 pixels
c.xAxis().setWidth(2);
c.yAxis().setWidth(2);

// Add a purple (800080) spline layer to the chart with a line width of 2 pixels
SplineLayer splineLayer = c.addSplineLayer(curveY, 0x800080, "Molecular Temperature");
splineLayer.setXData(curveX);
splineLayer.setLineWidth(2);

// Add a line layer to the chart with two dark green (338033) data sets, and a line width of 2
// pixels
LineLayer lineLayer = c.addLineLayer2();
lineLayer.addDataSet(upperY, 0x338033, "Target Zone");
lineLayer.addDataSet(lowerY, 0x338033);
lineLayer.setXData(zoneX);
lineLayer.setLineWidth(2);

// Color the zone between the upper zone line and lower zone line as semi-transparent light green
// (8099ff99)
c.addInterLineLayer(lineLayer.getLine(0), lineLayer.getLine(1), 0x8099ff99, 0x8099ff99);

// If the spline line gets above the upper zone line, color to area between the lines red (ff0000)
c.addInterLineLayer(splineLayer.getLine(0), lineLayer.getLine(0), 0xff0000, Chart.Transparent);

// If the spline line gets below the lower zone line, color to area between the lines blue (0000ff)
c.addInterLineLayer(splineLayer.getLine(0), lineLayer.getLine(1), Chart.Transparent, 0x0000ff);

// Add a custom CDML text at the bottom right of the plot area as the logo
c.addText(575, 250,
    "&lt;*block,valign=absmiddle*&gt;&lt;*img=small_molecule.png*&gt; &lt;*block*&gt;&lt;*font=Times New Roman Bold " +
    "Italic,size=10,color=804040*&gt;Molecular\nEngineering&lt;*/*&gt;").setAlignment(Chart.BottomRight);

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='Temperature at hour {x}: {value} C'"));
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Line with Target Zone&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Line with Target Zone
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here is the chart image ****** --&gt;
    &lt;%= viewer.renderHTML(response) %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
</div>
<br><hr class="separator"><div class="copyright">&copy; 2022 Advanced Software Engineering Limited. All rights reserved.</div>
</body>
</HTML>
